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Finding the Third Proportional to 43,358 and 66,117

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Solution

The third proportional to 43,358 and 66,117 is: 100,822.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,358 : 66,117 = 66,117 : x
  2. Step 2: Convert to fraction form
    43,358/66,117 = 66,117/x
  3. Step 3: Cross multiply
    43,358x = 66,117 × 66,117
  4. Step 4: Simplify right side
    43,358x = 4,371,457,689
  5. Step 5: Solve for x
    x = 4,371,457,689/43,358
  6. Step 6: Final answer
    x = 100,822.40

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.